| Follow-up of intracranial aneurysms treated with detachable coils: comparison of 3D inflow MRA at 3T and 1.5T and contrast-enhanced MRA at 3T with DSA. | |
| | |
MedLine Citation:
|
PMID: 18716766 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
INTRODUCTION: The purpose of this prospective study was to compare 3T and 1.5T magnetic resonance angiography (MRA) with digital subtraction angiography (DSA) for the follow-up of endovascular treated intracranial aneurysms to assess the grade of occlusion. MATERIALS AND METHODS: Thirty-seven patients with 41 aneurysms who had undergone endovascular treatment with detachable coils were included. MRA was performed on the same day using an eight-channel sensitivity encoding head-coil with 3D axial inflow technique. At 3T, a contrast-enhanced transverse 3D fast gradient echo acquisition was also performed. Most patients underwent DSA the following day. MRA scans and DSA were classified first independently by two neuroradiologists and an interventional neuroradiologist. Secondly, a consensus was done. Source images, maximum intensity projection, multiplanar reconstruction and volume rendering reconstructions were used for MRA evaluations. A modification of the Raymond classification, previously used for DSA evaluation of recanalization, was used. RESULTS: Statistical comparison of the consensus showed that 3T MRA with 3D axial inflow technique had better agreement with DSA (kappa = 0.43) than 1.5T MRA(kappa = 0.21) and contrast-enhanced MRA (CE-MRA) at 3T (kappa = 0.17). The susceptibility artefacts from the coil mesh were significally smaller at 3T (p = 0.002-0.007) than at 1.5T. CONCLUSION: 3T MRA, using a sensitivity encoding head-coil, showed better agreement with DSA than 1.5T and CE-MRA at 3T for evaluation of aneurysms treated with endovascular coiling. |
| | |
Authors:
|
Birgitta Ramgren; Roger Siemund; Mats Cronqvist; Per Undrén; Ola G Nilsson; Stig Holtås; Elna-Marie Larsson |
Related Documents
:
|
16532336 - Time-resolved 3d contrast-enhanced mra with grappa on a 1.5-t system for imaging of cra... 21160716 - Incremental value of magnetic resonance imaging in the advanced management of prostate ... 10397116 - Thoracic aorta: comparison of single-dose breath-hold and double-dose non-breath-hold g... 17664436 - Discordance between ct and angiography in the pioped ii study. 22261786 - Anatomic variations of neural canal structures of the mandible observed by 3-tesla magn... 10726086 - Magnetic resonance: evaluation of adrenal lesions. |
Publication Detail:
|
Type: Comparative Study; Controlled Clinical Trial; Journal Article Date: 2008-08-21 |
Journal Detail:
|
Title: Neuroradiology Volume: 50 ISSN: 1432-1920 ISO Abbreviation: Neuroradiology Publication Date: 2008 Nov |
Date Detail:
|
Created Date: 2008-10-21 Completed Date: 2009-05-05 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 1302751 Medline TA: Neuroradiology Country: Germany |
Other Details:
|
Languages: eng Pagination: 947-54 Citation Subset: IM |
Affiliation:
|
Department of Neuroradiology, Center for Medical Imaging and Physiology, Lund University Hospital, Lund, Sweden. birgitta.ramgren@skane.se |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adult Aged Angiography, Digital Subtraction Cohort Studies Contrast Media Embolization, Therapeutic* Female Humans Imaging, Three-Dimensional* Intracranial Aneurysm / diagnosis*, therapy* Magnetic Resonance Angiography / methods* Male Middle Aged Observer Variation Predictive Value of Tests Reproducibility of Results Treatment Outcome Young Adult |
| Chemical | |
Reg. No./Substance:
|
0/Contrast Media |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Missing in action: the effect of obstacle position and size on avoidance while reaching.
Next Document: Fetal MR imaging of atelosteogenesis type II (AO-II).